Fix autoconf build on FreeBSD: detect gmake, and put -D*_SOURCE under linux.
diff --git a/configure.ac b/configure.ac
index b9ad819..504d9ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,7 +26,10 @@
AC_PROG_CPP
AC_PROG_CC
AC_PROG_CXX
-AC_PATH_PROG(MAKE, make)
+AC_PATH_PROG(MAKE, gmake, [not_found])
+if test "x$MAKE" = "xnot_found"; then
+ AC_PATH_PROG(MAKE, make)
+fi
AC_PATH_PROG(MKDEP, makedepend)
AC_PATH_PROG(SED, sed)
@@ -64,11 +67,11 @@
dnl Compiler macros
DEFINES=""
AC_SUBST(DEFINES)
-if test "x$GCC" = xyes; then
- DEFINES="-D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_BSD_SOURCE"
-fi
case "$host_os" in
linux*)
+if test "x$GCC" = xyes; then
+ DEFINES="$DEFINES -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_BSD_SOURCE"
+fi
DEFINES="$DEFINES -D_SVID_SOURCE -D_GNU_SOURCE -DPTHREADS -DHAVE_POSIX_MEMALIGN"
;;
esac